ZIP Code 18231 in Kelayres, PA

Data Last Updated: February 1, 2026
City:Kelayres, Pennsylvania
County:Schuylkill County
Timezone:Eastern (GMT -05:00)
Local Time:9:37:11 PM
Population:497 [See All]
Area Codes:272 / 570
Classification:PO Box
Coordinates:40.9033, -76.0090
Land Area:0.115 sq mi
Quick Link:
https://www.zip-codes.com/zip-code/18231/zip-code-18231.asp

Download this data |

Download ZIP Boundaries |

18231 - Kelayres, PA

ZIP Code 18231, Kelayres

Small Town Unique ZIP
LocationSchuylkill County, PA
Area0 sq mi Single Point
Population497
Households211
PO Boxes144 (68% adoption)
Median Age39.8 years
ZIP CreatedBefore Oct 2004
Enclosed InZIP Code 18237
Key Facts
  • This PO Box ZIP serves 497 residents across 211 occupied households in Kelayres, PA
  • The post office maintains 144 PO Boxes, serving about 68% of local households
  • Two rural carrier routes provide street delivery to five named streets in the community
  • The median household income is $73,571, with a median home value of $115,500
  • The median age is 39.8 years, indicating a balanced mix of working-age adults and families
  • About 18% of workers are employed in transportation and material moving occupations, reflecting the area's industrial heritage

Postal Services and Delivery

The post office maintains 144 PO Boxes for 211 households, an adoption rate of 68%. This doesn't mean residents lack street delivery. Two rural carrier routes serve the community's five named streets. The PO Box preference reflects both regional tradition and practical considerations for rural mail. Some residents use boxes for convenience or security, while others receive delivery at home addresses along routes like 4th Street and Center Street.

Street Name Patterns

Numbered Grid

The numbered street grid (Third Street, 4th Street, 5 Street) reflects typical coal mining town planning from Pennsylvania's anthracite region. These orderly layouts were designed for rapid development during the mining boom.

Nearby Areas

Palo Alto Mechanicsville Pottsville Heckscherville Mount Carbon
Interactive charts load automatically as you scroll. Hover for data, click to explore trends, and use the menu to export.

Population & Demographics


ZIP Code 18231 has 497 residents and 211 households (average 2.36 persons per household). The median age is 39.8 years, slightly younger than the state (41.0) and slightly older than the nation (38.8). The gender split is 50.7% male and 49.3% female, which is slightly higher than the state male share (48.9%), making this a male-majority area. Largest groups are White (90.9%, much higher than the state average of 75.0% and well above the national average of 61.6%) and Hispanic or Latino (9.7%); Hispanic or Latino residents make up 9.7%, which is much lower than the national average (18.7%).

Explore More: Population Over Time By Age & Gender By Race By Gender Nativity & Citizenship

Source: U.S. Census 2020 Demographics & Housing Characteristics (DHC) and U.S. Census 2011-2024 American Community Survey (ACS) 5-Year Estimates.
2020 Population:497Source: Census DHC
2024 ACS Population Estimate:413Source: Census ACS
2026 ZC Population Estimate:0Source: ZIP-Codes.com
Population Density:4,321.7 people per sq mile
Average Income:$49,539Source: Census ACS
Households:211Source: Census DHC
Average House Value:$118,000Source: Census ACS
Persons Per Household:2.36Source: Census DHC
Average Family Size:3.81Source: Census ACS

Population Over Time (with 2010 & 2020 Census Benchmarks)


Group201020112102201320142015201620172018201920202021202220232024
Census ACS Population Estimate--529658658513475455482439487429474465431413
Decennial Census535------------------497--------
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP05. DEMOGRAPHIC AND HOUSING ESTIMATES

Population by Age & Gender (Total, Male, Female)


Median Age: 39.8

Male Median Age: 37.3

Female Median Age: 42.9

Group< 55-910-1415-1920-2425-2930-3435-3940-4445-4950-5455-5960-6465-6970-7475-7980-8485+
Male151616131227171610222013136131175
Female3132318131517167122623201213833
Total18293931254234321734463633182619108
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Population by Race


White:45285.93%
Black:30.57%
Hispanic:*489.13%
Asian:10.19%
American Indian:00%
Hawaiian:00%
Other:224.18%
Total:526100%
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)
* NOTE: Hispanic or Latino is an ethnicity, not a race. This means individuals who identify as Hispanic will also be included in one of the race categories (such as White or Black). As a result, the totals shown here may exceed 100% when Hispanic is displayed alongside racial groups.

Gender Breakdown


GenderCount%Median Age
Males:25250.70%37.3 years
Females:24549.30%42.9 years
Total:497100%39.8 years
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Nativity & Citizenship


Native, born in the United States:413100.00%
Native, born in PR, Island Areas, or abroad:00.00%
Foreign born, naturalized U.S. citizen:00.00%
Foreign born, not a U.S. citizen:00.00%
Total Population:413100%
Total Native Population:413100.00%
Total Foreign-born Population:00.00%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS
Note: Nativity and Citizenship derived from American Community Survey (ACS) 5-year estimates. Total Population listed here will not match official ZIP Code population totals, which are based on the Decennial Census.

Income & Employment


In 2024, the Median household income is $49,539, which is well under the national median ($80,734), is up $9,182 (22.8%) since 2011 and below its 2019 pre-pandemic level by $347. Family households earn a median of $96,250 versus $0 for nonfamily households (a difference of $96,250). By gender, male median income is $55,227 and female is $40,500, which is much lower than the national female median ($55,274), with a current gap of $14,727 that has widened from 2011 to 2024. The labor-force participation rate is 82.0%, which is markedly above the national rate (63.5%). The unemployment rate is 10.0%, which is far worse than the national rate (5.2%). The largest occupation group is Production (29.2%).

Explore More: Income Over Time Household Income Employment Status By Occupation

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. Using data from Tables DP02, DP03, DP04 and DP05.

Median Income Over Time (Household, Family, Nonfamily, Male, Female)


Income Type20112012201320142015201620172018201920202021202220232024
Median Household Income$40,357$44,318$39,890$39,118$39,961$42,019$40,938$43,092$49,886$50,481$52,857$62,212$73,571$49,539
Median Family Income$59,286$65,735$62,083$68,125$68,393$67,813$46,154$46,364$62,813$53,365$57,019$86,696$92,273$96,250
Median NonFamily Income$23,750$20,333$21,875$18,594$18,958$0$22,500$0$44,097$46,563$0$50,938$0$0
Median Male Income$36,591$37,083$37,593$37,941$38,871$47,083$38,295$37,813$41,000$50,387$52,969$56,792$58,145$55,227
Median Female Income$27,750$28,472$29,583$34,375$43,875$44,063$30,500$34,079$35,972$35,938$38,235$38,750$36,339$40,500
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP03. SELECTED ECONOMIC CHARACTERISTICS

Average Household Income


Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Employment Status


Employed:22673.86%
Unemployed:258.17%
Not In Labor Force:5517.97%
Total:306100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Employment by Occupation (Civilian Employed Population, 16 and Over)


Management, business, science, and arts:6327.88%
Service:3716.37%
Sales and Office:125.31%
Natural resources, construction, and maintenance:4821.24%
Production, transportation, and material moving:6629.20%
Total Civilian Employed Population:226100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS.

Housing & Affordability


In 2024, the median home value is $118,000, which is far less than the national median ($332,700), is up $27,500 (30.39%) since 2011 and above its 2019 pre-pandemic level by $26,800. The median gross rent is $821, which is much lower than the national median ($1,413), is up $254 (44.80%) since 2011 and below its 2019 pre-pandemic level by $34. Of occupied housing, owners make up 82.87% (78.67% with a mortgage, 21.33% free-and-clear) and renters 17.13% - making this ZIP Code under national rental averages. The vacancy rate is 5.73%, which is much lower than the national rate (10.12%).

Explore More: Compare Home Value Home Value Over Time Rent & Over Time Housing Occupancy

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. Using data from Table DP03, SELECTED ECONOMIC CHARACTERISTICS.

Median Home Value (Comparison)


Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Median Home Value Over Time


Group20112102201320142015201620172018201920202021202220232024
Median Home Value$90,500$88,500$87,000$85,500$84,400$85,700$84,800$83,800$91,200$92,300$94,700$113,500$115,500$118,000
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Gross Rent Paid


Less than $500:00.00%
$500 to $999:31100.00%
$1,000 to $1,499:00.00%
$1,500 to $1,999:00.00%
$2,000 to $2,499:00.00%
$2,500 to $2,999:00.00%
$3,000 or more:00.00%
No Rent:00.00%
Total:31100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Median Gross Rent Over Time


Group20112102201320142015201620172018201920202021202220232024
Median Rent$567$563$491$550$725$753$780$825$855$740$744$643$819$821
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Housing Occupancy


Owner Occupied (with mortgage):11865.19%
Owner Occupied (free and clear, no mortgage):3217.68%
Renter Occupied:3117.13%
Total Occupied Housing Units:181100%

Occupied Housing Units:18194.27%
Vacant Housing Units (not graphed):115.73%
Total Housing Units:192100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Housing Type (Single-Family, Multi-Family, Other)


Single-Family Units:16988.02%
Multi-Family Units:115.73%
Other Units:126.25%
Total Housing Units:192100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Education, Health & Community


In 2024, 12.20% of adults (25+) have a bachelor's degree or higher, which is far lower than the national rate (35.70%). High school or higher is 94.10%, which is comparable to the national rate (89.60%). The uninsured rate is 1.20%, which is far lower than the national rate (8.40%). Private coverage is 87.90%, which is well above the national rate (67.10%). Public coverage is 21.50%, which is falls below the national rate (36.70%). The share of people in poverty is 0.00%, which is comparable to the national rate (8.80%), down 2.20 percentage points since 2011 and below its 2019 pre-pandemic level by 14.50 percentage points. This suggests a positive shift in the local economic and social landscape - higher incomes, steadier consumer demand, and a strengthening tax base. Among residents ages 3+, the largest enrollment group is elementary (46.46%). College enrollment is 31.31%, which is comparable to the national rate (26.70%), meaning the community mirrors broader higher-education participation.

Explore More: Educational Attainment Health Insurance Poverty Over Time School Enrollment

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. Using data from Tables DP02 and DP03.

Educational Attainment of Adults (25 and Older)


Less than 9th grade:00.00%
9th to 12th grade, no diploma:165.90%
High school graduate (includes equivalency):8531.37%
Some college, no degree:12646.49%
Associate's degree:114.06%
Bachelor's degree:145.17%
Graduate or professional degree:197.01%
Total:271100%
High school or higher:25594.10%
Bachelor's degree or higher:3312.18%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Health Insurance Coverage by Type (Private, Public, Uninsured)


Private Insurance:36379.43%
Public Insurance:8919.47%
No Insurance:51.09%
Total:457100%
Has Health Insurance:45298.91%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Percentage of People in Poverty Over Time (2011-2024)


Group20112102201320142015201620172018201920202021202220232024
% of People in Poverty2.2%1.6%2.3%0.0%0.0%2.3%10.0%18.3%14.5%18.5%19.1%7.5%0.0%0.0%
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP03. SELECTED ECONOMIC CHARACTERISTICS

Note: Counts of Families & People in poverty are not published at the ZIP Code level due to small sample sizes. Percentages shown are survey estimates from the American Community Survey (ACS). They may differ from official poverty statistics. The U.S. Census Bureau defines poverty status by comparing a family's or individual's total income with federal poverty thresholds that vary by family size and composition.

School Enrollment by Education Level (Ages 3 and Older)


Nursery School, Preschool:00.00%
Kindergarten:00.00%
Elementary school (grades 1-8):4646.46%
High school (grades 9-12):2222.22%
College or graduate school:3131.31%
Total:99100%
Early Childhood:00.00%
K-12 (Primary & Secondary School):6868.69%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Business & Employment Statistics


ZIP Code 18231 is designated for PO Box delivery only; business establishment and employment data are not available.

# Residential Mailboxes:0Source: USPS
# Business Mailboxes:0Source: USPS
Total Delivery Receptacles:142Source: USPS
Single Family Delivery Units:0Source: USPS
Multi Family Delivery Units:0Source: USPS
# of Businesses:0Source: CBP
1st Quarter Payroll:$0Source: CBP
Annual Payroll:$0Source: CBP
# of Employees:0Source: CBP

Geography, Land Area, & Statistical Classifications


ZIP Code 18231 is located in Schuylkill County, Pennsylvania, within the Pottsville, PA Metropolitan Statistical Area (CBSA 39060) and Pennsylvania's 9th Congressional District. This Micro area has a population of 148,289 people, about 0.34% of whom live in ZIP Code 18231. It covers 0.115 sq mi of land and a water area of 0 sq mi.

CBSA Name:Pottsville, PASource: Census
CBSA Number:39060Source: Census
CBSA Type:MicroSource: Census
CBSA Division:--Source: Census
CBSA Population:148,289Source: Census
MSA:Source: Census
Land Area:0.115 sq miSource: Census
Water Area:--Source: Census
Congressional District:09Source: USPS
Congressional Land Area:5730.09 sq miSource: Census
PMSA:Source: Census
Intro Date:< 2004-10Source: ZIP-Codes.com
Place FIPS Code:4239056Source: Census
Place Name:Kelayres CDP; PennsylvaniaSource: Census

Adjacent & Nearby ZIP Codes


18232 | | 18230

Schools in ZIP Code 18231


We could not locate which school district 18231 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.

Mcadoo-Kelayres El/Ms 15 Kelayres Rd
Mcadoo, PA 18237
District: Hazleton Area School DistrictNearby
Heights Terrace El/Ms 275 Mill St
Hazleton, PA 18201
District: Hazleton Area School DistrictNearby
West Hazleton El/Ms 325 North St
West Hazleton, PA 18202
District: Hazleton Area School DistrictNearby
Maple Manor El/Ms 1700 W 22nd Street
Hazle Township, PA 18202
District: Hazleton Area School DistrictNearby
Hazleton El/Ms 700 North Wyoming St
Hazleton, PA 18201
District: Hazleton Area School DistrictNearby
Hazleton Trinity Nursery & Kindergarten School 100 N Church St
Hazleton, PA 18201
District: Private SchoolNearby
Immanuel Christian School 40 W Hemlock St
Hazleton, PA 18201
District: Private SchoolNearby
Holy Family Academy 601 N Laurel St
Hazleton, PA 18201
District: Private SchoolNearby

Colleges & Post Secondary Schools near ZIP Code 18231


Hazleton Area Career Center 1451 West 23rd Street
Hazle Twp., PA 18202
Type: Post Secondary
Pennsylvania State University-Penn State Hazleton 76 University Drive
Hazleton, PA 18202-8025
Type: Post Secondary
Schuylkill Technology Center 101 Technology Dr
Frackville, PA 17931
Type: Post Secondary
Empire Beauty School-Pottsville 396 Pottsville - St. Clair Highway
Pottsville, PA 17901
Type: Post Secondary
Joseph F Mccloskey School Of Nursing 450 Washington St
Pottsville, PA 17901
Type: Post Secondary
Pennsylvania State University-Penn State Schuylkill 200 University Drive
Schuylkill Haven, PA 17972-2202
Type: Post Secondary

Sources & References


Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on February 1, 2026.

  1. U.S. Postal Service [Last Updated: 2/1/2026], https://www.usps.com
  2. ZIP-Codes.com Proprietary Data Enhancements [Updated: 2/1/2026], https://www.zip-codes.com
  3. U.S. Census [Updated: Varies], https://www.census.gov
    • U.S. Census Office of Management and Budget [Updated: As Released]
    • U.S. Census 2020 Demographic & Housing Characteristics (DHC) [Decennial] [Updated: 5/25/2023]
    • U.S. Census 2011-2024 American Community Survey 5-year estimates (ACS) [Annually] [Updated: Annually, As Released]
    • U.S. Census Business Patterns (CBD) [Annually] [Updated: Annually, As Released]
    • U.S. Census American National Standards Institute (ANSI) [Updated: As Released]
  4. U.S. Geological Survey [Updated: Varies], https://www.usgs.gov
  5. Centers for Medicare & Medicaid Services [Updated: Annually, As Released], https://www.cms.gov
  6. National Center for Education Statistics [Updated: 2/1/2026], https://nces.ed.gov